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Finding the Fourth Proportional to 154,317.88, 231,318.42 and 75,334.96

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Solution

The fourth proportional to 154,317.88, 231,318.42 and 75,334.96 is: 112,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,317.88 : 231,318.42 = 75,334.96 : x
  2. Step 2: Convert to fraction form
    154,317.88/231,318.42 = 75,334.96/x
  3. Step 3: Cross multiply
    154,317.88x = 231,318.42 × 75,334.96
  4. Step 4: Simplify right side
    154,317.88x = 17,426,363,917.96
  5. Step 5: Solve for x
    x = 17,426,363,917.96/154,317.88
  6. Step 6: Final answer
    x = 112,925.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.